TWI481159B - Energy conversion device with eccentric rotor - Google Patents

Description

Energy conversion device with eccentric rotor

The present invention relates to an energy conversion device having an eccentric rotor, which may be a generator or a motor. The invention has the advantages of simple rotor structure, uniform magnetic field, easy analysis of air gap flux, magnetic flux change close to sine wave, improved performance of motor acceleration and deceleration, and skillful combination with cycloid reducer to become a cycloidal motor. efficacy.

Conventional motors can be classified into a "radial flux" motor 90 and an "axial flux" motor 80 if they are distinguished by the air gap flux direction of the rotor. The existing motor is mostly a conventional "radial flux" motor 90, and its appearance is as shown in the first figure, and the simplified principle is as shown in the second figure, and its biggest disadvantage is that it is bulky.

3A and 3B are schematic cross-sectional views of the "axial flux" motor 80 and a schematic view of the internal structure thereof. Compared with the "radial flux" motor, the axial flux motor 80 has a higher torque density. High, and because the torque is related to the rotor thickness T, the shaft-to-diameter ratio of the motor (ie, the ratio of the shaft length S to the diameter D) is low, which is suitable for axial space-constrained applications. Based on the characteristics of the axial magnetic flux horse 80 being light, thin and high torque, and the advancement of the manufacturing technology of the stator yoke 82, the application research of the axial flux motor has been paid more and more attention in recent years. The magnet 811 of the conventional axial flux motor is staggered and magnetized to the end surface of the rotor 81 with N and S polarities as shown in FIG. When the rotor 81 rotates, the magnetic flux passing through the stator coil 821 changes, and the counter electromotive force is thereby generated.

However, the traditional "axial flux" still has the following shortcomings and problems:

[1] The magnetic field of the magnet of the rotor is poor in uniformity. Because it is a combination of several different magnets, or is interlaced with N and S polarities on a ring magnet, the uniformity between them is poor, which is easy to cause the phenomenon of uneven magnetic flux, and the torque of the guided rotation is not average.

[2] Air gap flux analysis is not easy. It is impossible to use 2D magnetic circuit analysis software to analyze the magnetic field distribution. It is necessary to use 3D analysis, and the complexity is greatly improved.

[3] When the rotor rotates at constant speed, the flux changes from N to S or from S to N. Not a sine wave.

In addition, referring to the fourth figure, the conventional cycloid reducer 70 is composed of an input shaft 71, an eccentric external gear 72, a ring gear 73, a drive pin 74 and an output turntable 75; The output turntable 15 is fixed in one body. The local process of operation in its principle of operation is represented by the four processes of the first figure. When the input shaft 71 rotates, the eccentric gear 72 is driven to "roll" on the ring gear 73. Since the eccentric external gear 72 (total 8 teeth) and the ring gear 73 (total 9 teeth) are different by one tooth, the input shaft 71 After one rotation, the eccentric gear 72 rotates by one pitch in the opposite direction. Two reference points A and B are indicated in the fourth figure to facilitate understanding of the direction of rotation and the resulting relative movement relationship. However, the conventional cycloidal speed reducer 70 functions as a speed reducer, although the volume is relatively thin (compared to the conventional gear reducer), but if it is matched with a general motor (not shown), the entire volume is still large. Not easy to apply to narrow spaces. Therefore, the application range of the product is limited.

Therefore, it is necessary to develop new technologies to solve the above disadvantages.

The object of the present invention is to provide an energy conversion device with an eccentric rotor, which has the advantages of simple rotor structure, uniform magnetic field, easy analysis of air gap magnetic flux, magnetic flux change close to sine wave, improved performance of motor acceleration and deceleration, and pendulum The line reducer is skillfully combined to become a cycloidal motor and the like, and is used to solve the problem that the magnetic field uniformity of the magnet of the rotor in the prior art is poor, and the air gap flux analysis is not easy to change the magnetic flux.

The technical means for solving the above problems provides an energy conversion device having an eccentric rotor, comprising: a fixing portion having a central axis, an outer frame portion and a plurality of stator coil portions, the plurality of stator coil portions to the central axis All of the stator coil portions are fixed to the outer frame portion and spaced apart, each stator coil portion has a coil and two electrical connection points; an eccentric rotor having a bearing, a rotating shaft, and a An eccentric arm portion, an eccentric shaft portion, a carrier piece, an inner annular magnet portion, and an outer annular magnet portion; the rotating shaft is fixed on the bearing and located on the central axis; the eccentric arm portion has two ends thereof One end is coupled to the rotating shaft, and the other end is coupled to the eccentric shaft portion, and the eccentric shaft portion is coupled to the receiving piece; the receiving piece has an inner annular portion and an outer annular portion; the inner annular magnet portion has a first inner magnetic part and a second inner magnetic portion; the outer annular magnet portion has a first outer magnetic portion and a second outer magnetic portion; wherein the first inner magnetic portion and the second outer magnetic portion have the same polarity, and the first The inner magnetic portion and the first outer magnetic portion are of the same polarity; further, the inner annular magnet portion is fixed on the inner annular portion, and the outer annular magnet portion is fixed on the outer annular portion; the first inner portion a gap between the magnetic portion and the first outer magnetic portion and the plurality of stator coil portions; wherein the center of the inner annular magnet portion and the outer annular magnet portion are both the eccentric shaft portion, and the eccentric shaft portion is Deviate from the axis of rotation.

The present invention further provides an energy conversion device having an eccentric rotor, comprising: a fixing portion having a central axis, an outer frame portion and a plurality of stator coil portions, the plurality of stator coil portions being equidistant from the central axis, The plurality of stator coil portions are fixed to the outer frame portion and spaced apart, each stator coil portion has a coil and two electrical connection points; and an eccentric rotor having a bearing, a rotating shaft, an eccentric arm portion, and a An eccentric shaft portion, an inner annular magnet portion, and an outer annular magnet portion; the rotating shaft is fixed on the bearing and located on the central axis, the eccentric arm portion has two ends, one end of which is coupled to the rotating shaft and the other end Connecting the eccentric shaft portion; the inner annular magnet portion has a first inner magnetic portion and a second inner magnetic portion; the outer annular magnet portion has a first outer magnetic portion and a second outer magnetic portion; wherein The first inner magnetic portion and the second outer magnetic portion have the same polarity, and the second inner magnetic portion and the first outer magnetic portion have the same polarity; and the inner annular magnet portion is fixed to the inner annular portion. On, that The annular magnet portion is fixed on the outer annular region; the first inner magnetic portion and the first outer magnetic portion have a gap between the plurality of stator coil portions; and a cycloidal speed reducing device having an eccentric connecting shaft An eccentric external gear, a ring gear, a driving pin and an output turntable; further, the driving pin and the output carousel are integrally fixed; the eccentric connecting shaft is coupled to the eccentric shaft portion, and the eccentric external gear has an inner portion An annular region and an outer annular region; further, the inner annular magnet portion is fixed on the inner annular region, and the outer annular magnet portion is fixed on the outer annular region; and the outer frame portion is coupled to the ring gear system The eccentric coupling shaft is provided with an eccentric coupling bearing; wherein the center of the inner annular magnet portion and the outer annular magnet portion are the eccentric shaft portion, and the eccentric shaft portion is offset from the rotating shaft; Thereby, when the alternating current is input to the plurality of stator coil portions, a magnetic force that changes periodically is generated, the eccentric rotor is pushed, and the eccentric rotor is rotated, and the inner annular magnet portion and the outer annular magnet portion are fixed to the eccentric outer gear. In the above, the cycloidal speed reducing device generates a function of deceleration, and finally is outputted by the output dial.

10‧‧‧ Fixed Department

11‧‧‧ center axis

12‧‧‧Outer frame

13‧‧‧ Stator coil section

13A‧‧‧First coil

13B‧‧‧Second coil

131‧‧‧ coil

132‧‧‧Electrical connection points

20‧‧‧Eccentric rotor

21‧‧‧ bearing

22‧‧‧Rotary axis

23‧‧‧Eccentric arm

24‧‧‧Eccentric shaft

25‧‧‧ 承片

251‧‧ Inner ring zone

252‧‧‧Outer ring zone

253‧‧‧ outer ring zone

254‧‧‧Auxiliary bearing

26‧‧‧Inner ring magnet

261‧‧‧First Internal Magnetics Department

262‧‧‧Second Internal Magnetics Department

27‧‧‧Outer ring magnet

271‧‧‧The first external magnetic department

272‧‧‧Second External Magnetics Department

28‧‧‧ outer ring magnet department

281‧‧‧The first outermost magnet

282‧‧‧Second outermost magnet section

30‧‧‧Cycloid reducer

31‧‧‧Eccentric connecting shaft

311‧‧‧Eccentrically connected bearings

32‧‧‧Eccentric external gear

33‧‧‧ring gear

34‧‧‧ drive pin

35‧‧‧Output carousel

32A‧‧‧ Inner Ring Zone

32B‧‧‧Outer ring zone

70‧‧‧Traditional cycloid reducer

71‧‧‧Input shaft

72‧‧‧Eccentric external gear

73‧‧‧ring gear

74‧‧‧ drive pin

75‧‧‧Output carousel

80‧‧‧radial flux motor

81‧‧‧Rotor

811‧‧‧ Magnet

82‧‧‧stator yoke

821‧‧‧statar coil

90‧‧‧radial flux motor

T‧‧‧Rotor thickness

S‧‧‧ shaft length

D‧‧‧ path length

L1‧‧‧ first curve

L2‧‧‧ second curve

L3‧‧‧ third curve

G‧‧‧ gap

A‧‧‧ reference point

B‧‧‧ reference point

The first picture shows the appearance of a conventional radial flux motor.

The second picture is a schematic cross-sectional view of a conventional radial flux motor

Figure 3A is a schematic cross-sectional view of a conventional axial flux motor

The third B diagram is a schematic diagram of the internal structure of a conventional axial flux motor

The fourth picture is a schematic diagram of the structure and action of a traditional traditional cycloid reducer.

The fifth figure is a perspective view of the present invention

Figure 6 is a cross-sectional view of the present invention

Figure 7 is a perspective view of the eccentric rotor of the present invention

Figure 8 is an exploded perspective view showing a part of the structure of the eccentric rotor of the present invention.

The ninth diagram is a schematic view of the stator coil portion of the present invention

Figure 11 is a schematic view showing the coil portion of the stator coil portion of the present invention.

The eleventh figure is a schematic diagram of the relationship between the coil and the magnetic field of the present invention.

The twelfth figure is another schematic diagram of the relationship between the coil and the magnetic field of the present invention.

The thirteenth figure is a schematic diagram of the action principle of the present invention

Figure 14 is a schematic view showing the principle of operation of a single stator coil portion of the present invention.

The fifteenth figure is a schematic diagram of the eccentric amount and the change of the magnetic field of the present invention.

The sixteenth figure is a schematic view of the invention with an auxiliary bearing

Figure 17 is an appearance view of an embodiment of the three-ring of the present invention.

Figure 18 is a schematic view of an embodiment of a three-ring of the present invention

Figure 19 is a schematic view of a fourth embodiment of the present invention

Figure 20 is a schematic view showing the exploded state of the fifth embodiment of the present invention.

21 is a schematic diagram of the action process of the fifth embodiment of the present invention

Twenty-second drawing is a schematic view of a fifth embodiment of the present invention

The present invention is an energy conversion device having an eccentric rotor. There are two conversion modes, the first being a generator and the second being a motor.

Referring to FIG. 5 to FIG. 10 , which is a first embodiment of the present invention, as a generator, an energy conversion device having an eccentric rotor includes: a fixing portion 10 having a central axis 11. An outer frame portion 12 and a plurality of stator coil portions 13, wherein the plurality of stator coil portions 13 are three (at least two, but preferably three or four multiples) and are equidistant from the central axis 11 The plurality of stator coil portions 13 are fixed to the outer frame portion 12 and spaced apart (if only two stator coil portions 13 are used, they should be separated by 90 degrees), and each stator coil portion 13 has a coil 131 and two electrical connection points. An eccentric rotor 20 having a bearing 21, a rotating shaft 22, an eccentric arm portion 23, an eccentric shaft portion 24, a receiving piece 25, an inner annular magnet portion 26 and an outer annular magnet portion 27; The rotating shaft 22 is fixed on the bearing 21 and located on the central axis 11; the eccentric arm portion 23 has two ends, one end of which is coupled to the rotating shaft 22, and the other end is coupled to the eccentric shaft portion 24, and the eccentricity The shaft portion 24 is coupled to the carrier 25; the carrier 25 has an inner annular region 251 and an outer ring The inner annular magnet portion 26 has a first inner magnetic portion 261 and a second inner magnetic portion 262 (representing the N and S poles of the inner annular magnet portion 26, respectively); the outer annular magnet portion 27 has a a first outer magnetic portion 271 and a second outer magnetic portion 272 (representing the N and S poles of the outer annular magnet portion 27, respectively); wherein the first inner magnetic portion 261 and the second outer magnetic portion 272 are The second inner magnetic portion 262 and the first outer magnetic portion 271 are of the same polarity (for example, the S pole); and the inner annular magnet portion 26 is fixed to the inner annular portion 251. The outer annular magnet portion 27 is fixed to the outer annular region 252; the first inner magnetic portion 261 and the first outer magnetic portion 271 have a gap G between the plurality of stator coil portions 13; The center of the inner annular magnet portion 26 and the outer annular magnet portion 27 are both the eccentric shaft portion 24, and the eccentric shaft portion 24 is offset from the rotating shaft 22; thereby, when the rotating shaft 22 of the eccentric rotor 20 rotates Each stator coil portion 13 is continuously cyclically switched on the inner annular magnet portion 26 and the outer annular magnet portion 27 to The plurality of stator coils 131 of the coil 13 of the magnetic flux will change, thereby generating induced electromotive force as a schematic view and a twelfth eleventh of FIG electrically connected to the point 132.

Regarding the principle of operation of the present invention, please refer to the eleventh to fourteenth drawings.

The process of rotating one turn is divided into four parts to explain, and is explained by the bottom of the three stator coil parts 13 (the dotted line frame) (the rest of the principle is the same):

[a] Spin to the bottom. As shown in the upper left of the thirteenth diagram, a large portion (about 9/10) of the stator coil portion 13 located at the lowermost portion is located on the inner annular magnet portion 26, and the ratio of the outer annular magnet portion 27 is extremely low (about 1/10), as the first one on the left of the fourteenth figure.

[b] Spin to the left. As shown in the upper right of the thirteenth figure, a portion (about 1/4) of the stator coil portion 13 located at the lowermost portion is on the inner annular magnet portion 26, and the remaining portion (about 3/4) is located at the bottom. The outer annular magnet portion 27 is the second one on the left side of the fourteenth figure.

[c] Spin to the top. As shown in the lower right of the thirteenth figure, a very small portion (about 1/20) of the stator coil portion 13 located at the bottom is now on the inner ring magnet portion 26, and the remaining portion (about 19/20) is located at the bottom. The outer annular magnet portion 27 is the third one on the left side of the fourteenth figure.

[d] Spin to the right. As shown in the lower left of the thirteenth figure, a portion (about 1/3) of the stator coil portion 13 located at the lowermost portion is on the inner annular magnet portion 26, and the remaining portion (about 2/3) is located at the bottom. The outer annular magnet portion 27 is the one on the far right of the fourteenth diagram.

Therefore, when you make one rotation, the N-S ratio will change. Therefore, when it is rotated all the time, it will produce a cyclical change corresponding to NSNS... Since the three stator coil sections 13 are separated by 120 degrees, the difference in the three voltage variations generated is also 120 degrees, that is, the three-phase current. . If the number of stator coil portions 13 is increased, more phase currents can be generated.

Referring to FIG. 15 , an experimental data of the present invention, wherein when the eccentric amounts are 0.92 mm, 1.22 mm, and 1.5 mm, respectively, the magnetic field intensity changes generated by the first curve L1 and the second curve L2, respectively. The three curve L3 is represented.

Of course, the first inner magnetic portion 261 and the second outer magnetic portion 272 in the previous example may be changed to the S pole, and the second inner magnetic portion 262 and the first outer magnetic portion 271 are N poles. It can also produce the same three-phase current.

Additionally, the carrier 25 can be a non-magnetic or magnetically permeable material. In the case of a magnetic conductive material, a relatively complete magnetic circuit can be formed between the inner annular magnet portion 26 and the outer ring magnet portion 27 to reduce magnetic leakage.

Furthermore, as shown in Fig. 16, an auxiliary bearing 254 can also be mounted at the center of the carrier 25, pivotally connected to the eccentric shaft portion 24, so that the eccentric rotor 20 has two degrees of rotational freedom. If the center of the rotor is also its center of mass, the centroid can be rotated about the eccentric shaft portion 24, the eccentric rotor 20 (including the carrier 25 and the inner annular magnet portion 26 and the outer annular magnet portion 27 fixed thereto) Then, the rotator shaft 25 is rotated in a "translation" posture (no rotation or only a slight rotation), so that the effective inertia of the eccentric rotor 20 can be greatly reduced (effective throughput I _E =Me ² , M is the rotor mass, and e is the eccentricity), which can also improve the acceleration and deceleration performance of this device.

In the above example, the rotating shaft 22 is a kinetic energy input, and the electrical connection point 132 of the stator coil portion can output electric energy, which is a device that is converted into electric energy by a generator.

Similarly, if used in reverse, it can also be an electric motor, which is the second embodiment of the present invention.

Regarding the second embodiment of the present invention, the structural portions are the same as those of the first embodiment, but the inputs and outputs are reversed. In the second embodiment, the input is electrical energy (e.g., three-phase current), electrical energy is input from the electrical connection point 132 of the stator coil portion, and the rotating shaft 22 becomes a kinetic energy output. Therefore, the effect of converting electrical energy into kinetic energy can be achieved.

In addition, please refer to FIG. 17, which is another embodiment of the present invention. As a generator, the main structure is the same as that of the first embodiment, and the difference is:

[a] The two ring designs of the inner ring magnet portion 26 and the outer ring magnet portion 27 are modified into three rings, and the inner ring magnet portion 26, the outer ring magnet portion 27, and the outermost ring magnet portion are formed from the inside to the outside. 28, all concentric. The outermost ring magnet portion 28 has a first outermost magnet portion 281 and a second outermost magnet portion 282. Moreover, the carrier 25 has an outermost annular region 253 for fixing the second outermost magnet portion 282. The magnetic property of the first outermost magnet portion 281 is the same as that of the first inner magnetic portion 261, and the second outermost magnet portion 282 is the same as the second inner magnetic portion 262.

[b] The original set of coils 13 is modified to include a first coil portion 13A and a second coil portion 13B connected in a line; the first coil portion 13A is relatively inner, and the second coil portion 13B is external. And the coil winding direction of the first coil portion and the second coil portion is opposite. Further, the center distance between the first coil portion 13A and the second coil portion 13B is substantially the same as the width of the outer ring magnet portion 27.

Referring to FIG. 18, in operation, the first coil portion 13A moves between the inner ring magnet portion 26 and the outer ring magnet portion 27 for each revolution, and the second coil portion The 13B system moves between the outer annular magnet portion 27 and the outermost annular magnet portion 28, and the principle of power generation by the movement is the same as that of the first embodiment, and will not be described herein. Therefore, when the rotation continues, power can also be generated.

In addition, referring to the nineteenth embodiment, which is a fourth embodiment of the present invention, which is a motor, the main structure is the same as that of the second embodiment, with the difference that only two stator coil portions 13 are used, and the motor is fixed thereto. The outer frame portion 12 is spaced apart by 90 degrees. Thereby, the phase difference (the principle is similar to that of a conventional motor, and therefore will not be described) is used to drive the rotation to output power.

Please refer to the twentieth, twenty-first, and twenty-second figures, which is a fifth embodiment of the present invention, which is ingeniously fused together with a flat fixed portion, an eccentric rotor, and a cycloidal speed reducing device. The utility model relates to an electric motor with a deceleration function, which comprises: a fixing portion 10 having a central axis 11, an outer frame portion 12 and a plurality of stator coil portions 13, and the plurality of stator coil portions 13 are three (at least two) The plurality of stator coil portions 13 are fixed to the outer frame portion 12 and spaced apart (if only two stator coil portions 13 are used, but preferably three or four multiples) and are equidistant to the central axis 11 Then, the stator coil portion 13 has a coil 131 and two electrical connection points 132. An eccentric rotor 20 has a bearing 21, a rotating shaft 22, an eccentric arm portion 23, and an eccentric shaft. a portion 24, an inner annular magnet portion 26 and an outer annular magnet portion 27; the rotating shaft 22 is fixed to the bearing 21 and located on the central axis 11, the eccentric arm portion 23 has two ends, one end of which is coupled The rotating shaft 22 is connected to the eccentric shaft portion 24 at the other end; the inner annular magnet portion 26 There is a first inner magnetic portion 261 and a second inner magnetic portion 262 (representing the N and S poles of the inner annular magnet portion 26, respectively); the outer annular magnet portion 27 has a first outer magnetic portion 271 and a second The outer magnetic portion 272 (representing the N pole and the S pole of the outer annular magnet portion 27 respectively); wherein the first inner magnetic portion 261 and the second outer magnetic portion 272 are of the same polarity (for example, N pole), and the The second inner magnetic portion 262 and the first outer magnetic portion 271 have the same polarity (for example, the S pole); the first inner magnetic portion 261 and the first outer magnetic portion 271 are provided between the plurality of stator coil portions 13 and the plurality of stator coil portions 13 a gap G; a cycloidal speed reducing device 30 having an eccentric connecting shaft 31, an eccentric external gear 32, a ring gear 33, a driving pin 34 and an output dial 35; further, the driving pin 34 and the The output turret 35 is fixedly integrated; the eccentric coupling shaft 31 is coupled to the eccentric shaft portion 24, the eccentric external gear 32 has an inner annular portion 32A and an outer annular portion 32B; and the inner annular magnet portion 26 is fixed The outer annular magnet portion 27 is fixed to the outer annular portion 32B, and the outer frame portion 12 is integrally coupled to the ring gear 33, and the eccentric connecting shaft 31 is provided with a The eccentrically connected bearing 311; wherein the center of the inner annular magnet portion 26 and the outer annular magnet portion 27 are the eccentric shaft portion 24, and the eccentric shaft portion 24 is offset from the rotating shaft 22; thereby, when the alternating current is in the plural After the input of the stator coil portion 13, a periodically varying magnetic force is generated, the eccentric rotor 20 is pushed, and the eccentric rotor 20 is rotated. Since the inner annular magnet portion 26 and the outer annular magnet portion 27 are fixed to the eccentric external gear 32, The cycloidal speed reducing device 30 is caused to generate a function of deceleration, and finally outputted by the output dial 35.

The principle of operation of the cycloidal speed reducing device 30 of the present invention is the same as that of the prior art, and will not be described herein.

In summary, the advantages and effects of the present invention can be summarized as follows:

[1] The rotor has a simple structure and a uniform magnetic field, and a single toroidal magnet is easy to manufacture and has a relatively uniform magnetic field.

[2] Air gap flux analysis is easy, and the magnetic field distribution can be accurately calculated using the 2D magnetic circuit analysis software.

[3] When the rotor rotates at the same speed, the magnetic flux of the stator changes close to the sine wave. If the sine wave current is input, the rotor can rotate synchronously with the input signal.

[4] An auxiliary bearing or eccentrically connected bearing can be installed at the center of the rotor (as shown in Figures 16 and 20, respectively), so that the eccentric rotor has two degrees of rotational freedom. If the center of the rotor is also its center of mass, the center of mass can be rotated about the eccentric shaft, that is, the eccentric rotor 20 pushes the eccentric shaft portion 24 in a "translational" manner as shown. In this way, the effective inertia of the eccentric rotor 20 can be greatly reduced (the effective amount IE=Me2, M is the rotor mass, and e is the eccentricity), and the performance of the motor acceleration and deceleration can be improved.

[5] can be combined with the cycloid reducer to become a cycloidal motor. As the volume of the product has been greatly reduced. Since the invention cleverly combines the flat fixed portion 10, the eccentric rotor 20 and the cycloidal speed reducing device 30, the eccentric design of the eccentric rotor 20 can be applied to the cycloid reduction. The eccentric external gear 32 of the speed device 30, therefore, the size of the product is greatly reduced, and can be applied to applications with small space. At the same time, since a coupling is omitted, the operation can be smoother.

The present invention has been described in detail with reference to the preferred embodiments of the present invention, without departing from the spirit and scope of the invention.

From the above detailed description, it will be apparent to those skilled in the art that the present invention can achieve the foregoing objects, and the invention has been in accordance with the provisions of the patent law.

10‧‧‧ Fixed Department

11‧‧‧ center axis

12‧‧‧Outer frame

13‧‧‧ Stator coil section

20‧‧‧Eccentric rotor

21‧‧‧ bearing

22‧‧‧Rotary axis

23‧‧‧Eccentric arm

24‧‧‧Eccentric shaft

25‧‧‧ 承片

26‧‧‧Inner ring magnet

27‧‧‧Outer ring magnet

271‧‧‧The first external magnetic department

272‧‧‧Second External Magnetics Department

Claims (10)

An energy conversion device having an eccentric rotor, comprising: a fixing portion having a central axis, an outer frame portion and a plurality of stator coil portions, the plurality of stator coil portions being equidistant from a central axis, the plurality of stator coil portions Fixed to the outer frame portion and spaced apart, each stator coil portion has a coil and two electrical connection points; an eccentric rotor having a bearing, a rotating shaft, an eccentric arm portion, an eccentric shaft portion, and a a bearing piece, an inner annular magnet portion, and an outer annular magnet portion; the rotating shaft is fixed on the bearing and located on the central axis; the eccentric arm portion has two ends, one end of which is coupled to the rotating shaft, and the other end Attaching the eccentric shaft portion, and the eccentric shaft portion is coupled to the receiving piece; the receiving piece has an inner annular portion and an outer annular portion; the inner annular magnet portion has a first inner magnetic portion and a second portion The inner magnetic portion has a first outer magnetic portion and a second outer magnetic portion; wherein the first inner magnetic portion and the second outer magnetic portion have the same polarity, and the second inner magnetic portion And the first external magnetic The inner annular magnet portion is fixed on the inner annular region, and the outer annular magnet portion is fixed on the outer annular region; the first inner magnetic portion and the first outer magnetic portion are The plurality of stator coil portions have a gap therebetween; wherein the center of the inner annular magnet portion and the outer annular magnet portion are both the eccentric shaft portion, and the eccentric shaft portion is offset from the rotating shaft. An energy conversion device having an eccentric rotor according to claim 1, wherein the kinetic energy is input by the rotating shaft, and the electrical connection point of the stator coil portion is an electric energy output; when the rotating shaft of the eccentric rotor rotates And each stator coil portion is located on at least one of the inner annular magnet portion and the outer annular magnet portion, and is continuously cyclically switched on the inner annular magnet portion and the outer annular magnet portion, so that the Magnetic of coils of a plurality of stator coil portions The flux then changes, and an induced electromotive force is generated by the electrical connection point. An energy conversion device having an eccentric rotor according to claim 2, wherein the carrier is one of a non-magnetic material and a magnetic conductive material. An energy conversion device having an eccentric rotor according to claim 2, wherein an auxiliary bearing is mounted at a center of the carrier and pivotally connected to the eccentric shaft portion. An energy conversion device having an eccentric rotor according to claim 2, further comprising: an outermost ring magnet portion having a first outermost magnet portion and a second outermost magnet portion; The magnet of the outer magnet portion is the same as the first inner magnetic portion, and the second outermost magnet portion is identical to the second inner magnetic portion; further, each set of coils includes a first coil portion and a second coil portion. Connected to a line; and the coils of the first coil portion and the second coil portion are opposite in winding direction; further, the center distance between the first coil portion and the second coil portion is substantially the same as the width of the outer annular magnet portion the same. An energy conversion device having an eccentric rotor according to claim 1, wherein the electric energy is input from an electrical connection point of the stator coil portion, and the rotating shaft is a kinetic energy output; thereby, when the alternating current is applied to the plurality of stators After the coil portion is input, a magnetic force that changes periodically is generated to push the eccentric rotor, and the eccentric rotor is rotated, and kinetic energy is output from the rotating shaft. An energy conversion device having an eccentric rotor according to claim 6, wherein the carrier is one of a non-magnetic material and a magnetic conductive material. An energy conversion device having an eccentric rotor according to claim 6, wherein an auxiliary bearing is mounted on the receiving piece at the center of the eccentric rotor, and is pivotally connected to the eccentric shaft portion. An energy conversion device having an eccentric rotor according to claim 6, wherein the fixing portion has two stator coil portions and is fixed to the outer frame portion at intervals of 90 degrees. An energy conversion device having an eccentric rotor, comprising: a fixing portion having a central axis, an outer frame portion and a plurality of stator coil portions, the plurality of stator coil portions being equidistant from a central axis, the plurality of stator coil portions Fixed to the outer frame portion and spaced apart, each stator coil portion has a coil and two electrical connection points; an eccentric rotor having a bearing, a rotating shaft, an eccentric arm portion, an eccentric shaft portion, and a An inner annular magnet portion and an outer annular magnet portion; the rotating shaft is fixed on the bearing and located on the central axis, the eccentric arm portion has two ends, one end of which is coupled to the rotating shaft and the other end is coupled to the eccentric shaft The inner annular magnet portion has a first inner magnetic portion and a second inner magnetic portion; the outer annular magnet portion has a first outer magnetic portion and a second outer magnetic portion; wherein the first inner magnetic portion The second outer magnetic portion is of the same polarity as the second outer magnetic portion, and the second inner magnetic portion is of the same polarity; and the inner annular magnet portion is fixed to the inner annular portion, the outer annular portion Magnet section On the outer annular region; the first inner magnetic portion and the first outer magnetic portion have a gap between the plurality of stator coil portions; a cycloidal speed reducing device having an eccentric connecting shaft and an eccentric outer gear a ring gear, a driving pin and an output carousel; further, the driving pin and the output carousel are integrally fixed; the eccentric connecting shaft is coupled to the eccentric shaft portion, the eccentric external gear has an inner annular region and an outer portion An annular portion; the inner annular magnet portion is fixed to the inner annular portion, and the outer annular magnet portion is fixed to the outer annular portion; further, the outer frame portion is integrally coupled with the ring gear train, and The eccentric connecting shaft is provided with an eccentric connecting bearing; wherein the center of the inner annular magnet portion and the outer annular magnet portion are the eccentric shaft portion, and the eccentric shaft portion is offset from the rotating shaft; thereby, when the alternating current is in the plural After the stator coil portion is input, a magnetic force that changes periodically is generated. The eccentric rotor is driven to rotate the eccentric rotor. The inner annular magnet portion and the outer annular magnet portion are fixed to the eccentric external gear, so that the cycloidal speed reducing device generates a deceleration function, and finally outputs the output rotating disc.